regulator: tps6287x-regulator: Enable REGCACHE_MAPLE

Enable regmap cache to reduce i2c transactions and corresponding
interrupts if regulator is accessed frequently.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20250629095822.868-1-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/tps6287x-regulator.c b/drivers/regulator/tps6287x-regulator.c
index c0f5f0a186a3d91ceb63290491aa7d0416ab432c..7b7d3ae392065d88fdb63e1d58d49b8328af8a22 100644 (file)
--- a/drivers/regulator/tps6287x-regulator.c
+++ b/drivers/regulator/tps6287x-regulator.c
@@ -27,10 +27,17 @@
 #define TPS6287X_CTRL3         0x03
 #define TPS6287X_STATUS                0x04
 
+static bool tps6287x_volatile_reg(struct device *dev, unsigned int reg)
+{
+       return reg == TPS6287X_STATUS;
+}
+
 static const struct regmap_config tps6287x_regmap_config = {
        .reg_bits = 8,
        .val_bits = 8,
        .max_register = TPS6287X_STATUS,
+       .cache_type = REGCACHE_MAPLE,
+       .volatile_reg = tps6287x_volatile_reg,
 };
 
 static const struct linear_range tps6287x_voltage_ranges[] = {